An Argo Float:

Argo Float buoyancy

By changing its own buoyancy, an Argo Float is able to float at different depths. Every 10 days the Argo Float returns to the surface to send information to satellites. This information is called a 'profile'.

How do Argo Floats measure the ocean?

A fun and quirky YouTube video animation that explains what an Argo float is, how it operates and how the data helps us understand ocean circulation and climate.